| article html file updated | 9 February 2020 10:34 CET | Update | https://www.mdpi.com/1422-0067/19/4/923 |
| article html file updated | 1 October 2019 19:31 CEST | Update | - |
| article html file updated | 1 May 2019 10:11 CEST | Update | - |
| article html file updated | 17 April 2019 10:03 CEST | Update | - |
| article html file updated | 29 March 2019 08:11 CET | Update | - |
| article html file updated | 21 March 2018 03:53 CET | Original file | - |
| article xml uploaded. | 21 March 2018 03:51 CET | Original file | https://www.mdpi.com/1422-0067/19/4/923/xml |
| article pdf uploaded. | 21 March 2018 03:51 CET | Version of Record | https://www.mdpi.com/1422-0067/19/4/923/pdf |
